CN-224202864-U - Spliced cement mortar test piece mold provided with stripper

CN224202864UCN 224202864 UCN224202864 UCN 224202864UCN-224202864-U

Abstract

The utility model discloses a spliced cement mortar test piece mould provided with a stripper, which comprises a mould and the stripper. The die is a rectangular frame accommodating cavity with adjustable quantity, which is formed by splicing a foundation bottom plate, a splicing bottom plate, a foundation side plate, a splicing side plate, a side plate and a T-shaped diaphragm plate. The stripper is located the remaining end cavity of mould curb plate, including base, power chamber, oil pocket and pressurization beam cavity etc. and power intracavity is established the tip elevating column, and two cylindrical horizontal support column are placed to the upside symmetry, and the bottom is connected with pressurization beam cavity and oil pocket through oily siphunculus. The pressurizing lever is controlled to adjust the air pressure in each beam cavity, so that hydraulic oil is pressurized to enter the bottom of the pointed lifting column of the force-generating cavity through the oil passing pipe, and the hydraulic pressure is applied to slowly rise the pointed lifting column, so that the horizontal supporting column is pushed to transversely move the extruding side plate, the side plate is separated from the test piece, and the demoulding is completed. The utility model solves the problems of difficult demoulding, fixed quantity and low labor consumption and efficiency of the existing cement mortar test piece.

Inventors

ZHANG XIANGDONG
DONG YAO
LI WENLIANG
WANG LETONG
LI FENGJUAN

Assignees

辽宁工程技术大学

Dates

Publication Date: 20260505
Application Date: 20241223

Claims (5)

1. A but configuration stripper splice cement mortar test piece mould, its characterized in that: The die comprises a foundation bottom plate (1), a splicing bottom plate (2), a foundation side plate (3), a splicing side plate (4), wedge nailing strips (5), a T-shaped diaphragm plate (6) and side plates (7), wherein the side plates are placed in parallel in relative positions, the side plates are placed vertically with the side plates, the side walls on the left side and the right side of the side plates are clung to the inner walls of the side plates to form a rectangular frame with hollow inside, and the bottom plates are vertically positioned at the bottoms of the side plates and the side plates; The stripper comprises a horizontal support column (8), a friction column head (9), a homing spring (10), a force-emitting cavity (11), a base (12), a first unidirectional blocking ball (13), a second unidirectional blocking ball (14), a third unidirectional blocking ball (15), hydraulic oil (16), a first oil passing through pipe (17), a second oil passing through pipe (18), an oil discharging through pipe (19), an oil cavity (20), a lever fixing collar (21), a fixing button (22), a pressurizing lever (23), a handle (24), a pressurizing piston (25), a pressurizing beam cavity (26), an oil injection plug (27), an oil discharging screw button (28), a tip lifting column (29), a lifting beam cavity (30), a main body outer wall (31) and a sealing ring (32); The two horizontal support columns (8) are horizontally and symmetrically arranged in the power generation cavity (11), the whole body is cylindrical, the outer end of the horizontal support column is connected with the friction column head (9), the upper cross section of the inner end of the horizontal support column is connected by the homing spring (10), the lower part of the horizontal support column is attached to the expanding pointed end of the pointed lifting column (29), the column body of the pointed lifting column (29) is positioned in the lifting beam cavity (30) at the lower side of the power generation cavity (11), the lifting beam cavity (30) is provided with an oil cavity (20) for storing hydraulic oil (16), the oil cavity (20) and the lifting beam cavity (30) are respectively communicated with the pressurizing beam cavity (26) through a first oil passing pipe (17) and a second oil passing pipe (18), the pressurizing beam cavity (26) is internally provided with a pressurizing piston (25), the pressurizing piston (25) is sleeved with the lower part of the pointed lifting column (29), the upper part of the piston is connected with a pressurizing lever (23), the tail end of the pressurizing lever (23) is provided with a handle (24), the head part of the pressurizing lever is jointly fixed on a base (12) by a lever fixing collar (21) and a fixing button (22), the base (12) is provided with a second oil passing pipe (19), one side opposite to the pressurizing lever (23) is provided with the pressurizing lever (19), the other side opposite to the pressurizing lever (19), the other side is connected with the oil releasing device (19), the oil releasing device is in a cylinder, an oil filling plug (27) is arranged at the fixed position of the wall body.
2. The spliced cement mortar test piece mold provided with a stripper according to claim 1, wherein: The base plates (1) of the mold are provided with two base plates (1), one side of the plane of the base plates (1) is semi-convex, the other side structure is in a mortise and tenon structure form with specific concave-convex shape, the two base plates (1) are spliced in a butt joint mode, wedge nail strips (5) are inserted into the spliced mortise and tenon structure to be reinforced to form a single-test-piece mold base plate, the spliced base plates (2) are provided with a plurality of mortise and tenon edge structures with concave-convex shapes identical to the side edges of the base plates (1), and the spliced base plates (2) are spliced in the butt joint mode between the two base plates (1) and are reinforced by the wedge nail strips (5) to form a multi-test-piece mold base plate; The mold comprises a plurality of base side plates (3), wherein two base side plates (3) are arranged, one side of a side plane of each base side plate (3) is a long rectangle with a residual end, the other side structure is in a mortise-tenon structure form with a specific concave-convex shape, the two base side plates (3) are spliced in a butt joint mode to form a single-test-piece mold side plate, a plurality of spliced side plates (4) are arranged, mortise-tenon edge structures with the same concave-convex shape as the side edges of the base side plates (3) are arranged on two sides of each plate, and the spliced side plates (4) are spliced in a butt joint mode between the two base side plates (3) to form a multi-test-piece mold side plate; The side plates (7) of the die are arranged in two, are respectively and vertically arranged between the single-test-piece die bottom plate and the single-test-piece die side plate to form a single-test-piece die integral accommodating cavity, the T-shaped transverse partition plates (6) are arranged in a plurality of equidistant positions of the multi-test-piece die bottom plate and the side plates to form an equal-division accommodating cavity of the multi-test-piece die.
3. The spliced cement mortar test piece mold provided with the ejector according to claim 2, wherein: Symmetrical grooves with coincident central lines are chiseled on the planes of the foundation base plate (1) and the splicing base plate (2), fixing convex blocks are arranged at corresponding positions of the bottoms of the foundation side plates (3) and the splicing side plates (4), and the convex blocks are matched with the grooves; The limit groove is formed in the position, corresponding to the side plate (7), of the residual end of the base side plate (3), the slot and the clamping groove are formed in the position, corresponding to the T-shaped diaphragm plate (6), of the middle line of the inner wall of the spliced side plate (4), one end of the T-shaped diaphragm plate (6) is in a T shape, and the size of the T-shaped diaphragm plate is matched with the slot and the clamping groove in the spliced side plate.
4. The spliced cement mortar test piece mold provided with a stripper according to claim 1, wherein: The expanding tip of the tip lifting column (29) of the stripper is conical, the inner end of the horizontal support column (8) is a conical curved surface which is concave inwards, and the radian of the curved surface is matched and close to that of the expanding tip of the tip lifting column (29); The column shaft of the tip lifting column (29) and the column shaft of the pressurizing piston (25) of the stripper are both cylinders, and the column shaft circular cross section of the tip lifting column (29) is four times of the circular cross section of the pressurizing piston (25).
5. The spliced cement mortar test piece mold provided with the stripper, as set forth in claim 1, is characterized in that the mold is made of stainless steel materials, the outer end friction column head (9) of the horizontal support column (8) of the stripper is made of rubber materials, and the hydraulic oil (16) is incompressible No. 46 abrasion-resistant hydraulic oil.

Description

Spliced cement mortar test piece mold provided with stripper Technical Field The utility model relates to the technical field of civil engineering test equipment, in particular to a spliced cement mortar test piece die provided with a stripper. Background In scientific research in the field of civil engineering, it is often necessary to study various properties of engineering materials, providing a solid foundation for their optimal application in engineering practice. Cement mortar, which is a material with excellent performance, plays a vital role in civil engineering material experiments, is not only a key test object for evaluating the strength, durability and construction performance of materials, but also an essential experimental foundation for researching novel building materials, optimizing proportioning design and exploring new fields of material application. At present, a common slurry test piece mould and a demoulding mode in a civil engineering laboratory mainly comprise a disassembly type mould and an impact type mould. The detachable die assembles the steel plates through screws and nuts to form rectangular pouring cavities. However, when the test piece is demoulded after being solidified, the steel plates are required to be disassembled one by one for demould, the process is time-consuming and the test piece is possibly damaged due to improper operation, the burden of operators is increased, and the working efficiency is reduced. While impact molds are usually made of high strength plastic with air holes in the bottom to push out the test piece by the air pressure of an air pump. But this approach not only requires additional air pump equipment, is costly, but is also limited by field conditions. In addition, the gas pocket is easy to block up during grouting, and a lot of time is spent for cleaning during demolding, and the demolding process can abrade a test piece and a mold due to overlarge air pressure, and even threatens the safety of staff. The existing die is fixed in form, the combination mode is not flexible enough, the combination mode cannot be flexibly changed according to the number requirements of actual test pieces, and the standard of the test piece size and the surface roughness in the specification is difficult to be achieved. In view of the problems of complex operation, easy damage to test pieces, low efficiency, influence on test accuracy and the like of the existing mold, development of a spliced cement mortar test piece mold provided with a stripper and a stripping method thereof is urgently needed, and aims to improve working efficiency, ensure test accuracy and reduce the burden of operators. Disclosure of Invention The method is flexible, cannot be flexibly changed according to the number requirements of actual test pieces, and is difficult to reach the standard of the test piece size and the surface roughness in the specification. In view of the problems of complex operation, easy damage to test pieces, low efficiency, influence on test accuracy and the like of the existing mold, development of a spliced cement mortar test piece mold provided with a stripper and a stripping method thereof is urgently needed, and aims to improve working efficiency, ensure test accuracy and reduce the burden of operators. Disclosure of utility model The utility model aims to solve the defects in the prior art and provides a spliced cement mortar test piece mold with a stripper and a stripping method thereof. The core of the design is that the test piece die with simple structure and higher overall performance is invented, and aims to reduce test errors and improve the accuracy of test results. In addition, through optimizing the operation flow, the demolding time of the test piece is obviously shortened, and the operation is more convenient and efficient. The utility model solves the technical problems and is realized by adopting the following technical scheme: The utility model relates to a spliced cement mortar test piece mould provided with a stripper, which comprises a mould and the stripper. The die comprises a foundation bottom plate, a spliced bottom plate, a foundation side plate, a spliced side plate, wedge nailing strips, a T-shaped diaphragm plate and side plates; The two base plates of the die are arranged, one side of the plane of the base plates is semi-convex, the other side structure is in a mortise and tenon structure form with specific concave-convex shape, the two base plates are spliced in a butt joint mode, wedge nailing strips are inserted into the spliced edge mortise and tenon structure to be reinforced to form a single-test-piece die base plate, a plurality of spliced base plates are arranged, mortise and tenon edge structures with the same concave-convex shape as the side edges of the base plates are arranged on two sides of the spliced base plates, and the spliced base plates are spliced in the butt joint mode between the two base plates and are reinforced